CN101029757B - Cooling unit - Google Patents

Cooling unit Download PDF

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Publication number
CN101029757B
CN101029757B CN2007101006293A CN200710100629A CN101029757B CN 101029757 B CN101029757 B CN 101029757B CN 2007101006293 A CN2007101006293 A CN 2007101006293A CN 200710100629 A CN200710100629 A CN 200710100629A CN 101029757 B CN101029757 B CN 101029757B
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CN
China
Prior art keywords
cooling
air
coolant
cooling unit
interior space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2007101006293A
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Chinese (zh)
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CN101029757A (en
Inventor
P·马基嫩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flaekt Woods AB
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Flaekt Woods AB
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Filing date
Publication date
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Publication of CN101029757A publication Critical patent/CN101029757A/en
Application granted granted Critical
Publication of CN101029757B publication Critical patent/CN101029757B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D9/00—Central heating systems employing combinations of heat transfer fluids covered by two or more of groups F24D1/00 - F24D7/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression

Abstract

The invention relates to a cooling unit installable into the air-conditioning systems of buildings for cooling/heating the indoor air thereof, the indoor spaces being cooled/heated by the supply air and liquid coolant-circulating cooling elements (7), The invention is implemented by way of complementing the intake air cooling/heating function of the cooling unit with a liquid-coolant cooler coupled to the same main circuit and passing the coolant to liquid-coolant circulating cooling devices (7) serving to cool the indoor spaces.

Description

Cooling unit
Technical field
The present invention relates to a kind of cooling unit, it can be installed in the air-conditioning system of building, is used for cooling room air wherein, by the air-supply and the liquid coolant circulation cooling element cooling interior space.
Background technology
At present, the refrigerating function in the air conditioning system generally is based on and cools off jointly by the air-supply stream of cooling and cooling device that the interior space realizes, described cooling device for example is mounted in the cooling coil in the interior space.Coolant media---for example water circulates in cooling coil.For this purpose, the water of water cooler manufacturing cooling, it circulates by the cooling coil of air inlet unit and the cooling device of the interior space.Except water cooler, independent roof evaporator/condenser is absolutely necessary for being delivered to outdoor air from the heat that the interior space is discharged.Therefore, parallel air-conditioning system needs three different unit: air inlet cooling unit, cooler and roof evaporator/condenser that cold-producing medium is circulated.
The existing cooling unit of known " Cooler " trade mark comprises the unit of complete function in applicant's product is selected, the air inlet that it can be connected (couple) and be used for cooling off the interior space that is sent to building with the air conditioner of building.In more detail, this cooler is the ready-made unit of the compressor machine that wherein has electricity/control system of combination factory-assembled.The heat of removing from air inlet is passed to the condenser coil that is arranged in the exhaust flow, and finally is dissipated in the building outdoor air on every side.The shortcoming of canonical form cooling unit maximum is that cooling effect only is utilized when air-supply.Yet cooling off air inlet separately can not provide sufficiently high cooling effect, unless use great air velocity.
Summary of the invention
An object of the present invention is to provide the cooling unit of the new model in a kind of air-conditioning system that is installed to building, cooling unit can overcome the problem that existing system exists, and can be at effective simplied system structure in form.Cooling unit according to the present invention is characterised in that except air inlet cooling function, cooling unit also comprises the circulate coolant cooler that connects with identical major loop, and its circulate coolant cooling element with the cooling interior space is connected.
A preferred embodiment according to cooling unit of the present invention is characterised in that, cooling unit comprises three compressors and three heat exchangers, one of them compressor and a heat exchanger are used for the cooling air-supply, and two other compressor is connected with the circulate coolant cooling element of the interior space with heat exchanger.
A key character of cooling unit is to be removed under the help of the evaporator/condenser coil pipe of the condensation heat that discharges in the cooling procedure in being arranged at cooling unit.
Another preferred embodiment according to cooling unit of the present invention is characterised in that, cooling unit comprises two compressors and two heat exchangers of the circulate coolant cooling element that is used for cooling off the interior space, and coolant circulating pipeline has another pipeline that is attached thereto, described another pipeline makes the liquid coolant circulation through the air inlet cooling coil under the help of pump, thereby realizes the cooling of air-supply.
The preferred embodiment that also has according to cooling unit of the present invention is characterised in that cooling unit has added the complete function that is used to heat air-supply.
Cooling unit according to the present invention is installed in the air-conditioning machine as single funtion part.Replenish the air inlet heating, cooling unit according to the present invention has made up the evaporimeter (circulation cooling coil) that connects with identical major loop, and it is connected with the circulate coolant of cooling coil.This layout allows the required whole coolings of unit controls building of independent factory-assembled.In common application, can omit water cooler and independent evaporator/condenser unit, roof also becomes unnecessary.
Description of drawings
By with reference to the accompanying drawings, invent under the help of preferred typical embodiment and described in more detail, wherein
Fig. 1 represents loop structure according to a preferred embodiment of the invention;
Fig. 2 represents loop structure according to a second, preferred embodiment of the present invention;
Fig. 3 represents the loop structure according to the 3rd preferred embodiment of the present invention; With
Fig. 4 represents the loop structure according to the 4th preferred embodiment of the present invention.
The specific embodiment
With reference to figure 1, wherein represented the loop structure of cooling unit, wherein compressor 1 cools off air inlet under the help of heat exchanger 3.Compressor 2 is used under the help of cold-producing medium/coolant heat exchanger 4 liquid coolant that cooling circulates at the pipe network of interior space aircondition 7.Pump 6 makes the liquid coolant circulation that is cooled in the interior space aircondition 7, and described aircondition 7 provides the cooling of room air.The heat dissipation of compressor is reached the evaporator/condenser coil pipe 5 of cooling unit, and here the heat that dissipates from cooling procedure is delivered to the exhaust that air-conditioning system is discharged by cooling unit.The power output of compressor 1,2 can be by control and distribution by stages mutually, and such desirable cooling effect selectively is passed to any point that needs cooling, and prevents that simultaneously delivery temperature from rising too high.
Fig. 2 represents the loop structure of second preferred embodiment of the present invention.Its layout and Fig. 1 are basic identical, but this layout has two compressors to replace three in the foregoing description, and compressor 1 is by cold-producing medium/coolant heat exchanger 4 coolings coolant circulating in pipe network 8 thus.Respectively, pump 9 circulates cooling agent in the air inlet cooling coil, and described air inlet cooling coil is used for the cooling air-supply.Pump 6 circulates the liquid coolant that is cooled in interior space aircondition 7, described aircondition 7 is realized the cooling of room air.The heat dissipation of compressor is sent to the evaporator/condenser coil pipe 3 of cooling unit.
Under some outside air temperature condition, necessary heating air inlet is even the room air of building needs cooling.Fig. 3 has represented loop structure according to another preferred embodiment of the invention, and it provides and has used air inlet to come the possibility of cooling coil with heating air inlet, space aircondition in water circulates in order to cooling chamber in pipe network 8 as cooling agent simultaneously.The benefit that heating function is integrated into cooling unit is to allow to omit in the air-conditioning machine independent air inlet heat(ing) coil.Equally, eliminated the pressure loss of air intake heater coil pipe and reduced the input power of air blast.Omit the required space of air conditioner length that heat(ing) coil has also reduced the about 700mm in the roof machine chamber, this is very favorable.
In more detail with reference to figure 3, the operation of the loop diagram of present embodiment is as follows once more: compressor 1 is by heat exchanger 4 coolings coolant circulating in pipe network 8.Pump 6 circulates the cooling agent that is cooled in interior space aircondition 7, to realize the cooling of room air.The pump 9 of indoor installation makes the circulate coolant of identical pipe network system by air-supply heat exchanger 3 (liquid coolant/air heat exchanger).Cooling circuit 12 is opened from the liquid coolant loop jump of room air cooling device by valve 11.The required heat energy of heating air-supply is incorporated into subsidiary loop 12 by liquid/liquid heat exchanger 10.Owing to have the loop 8,12 of the operation of being separated from each other, be possible in these two loops of different temperatures level run.Therefore the liquid coolant of cooling can be fed to interior space air-conditioning cooling device in evaporimeter 4, and warm water can be delivered to air-supply heat exchanger 3 simultaneously, and air inlet simultaneously is heated to the wind pushing temperature of desired setting.
The present invention makes that also utilizing the low temperature chamber outer air to cool off the liquid coolant that circulates in interior space aircondition becomes possibility, and by this, " freely circulating " moved under the compressor halted state.Because the water coolant that circulates in the pipe network of interior space aircondition also passes through the inlet air cooling coil of cooling unit here, so when building needs cooling and outside air temperature enough low, for example 10-15 ℃, use this " freely circulating " cooling device to realize that cooling effect becomes possibility.Also can make outdoor cold air be sent to the pipe network of interior space aircondition by " freely circulating " cooling, and be sent to the desirable interior space therefrom through the cooling effect that air-breathing cooling coil provided.Cooling by " freely circulating " means can make the power budget expense of building significantly reduce.
Next, with reference to Fig. 4 " freely circulating " discussed above described in more detail.The liquid coolant that returns from cooling device 7 flow to the air inlet cooling coil 3 of cooling unit by valve 11.At this moment, coolant temperature approximately is 19 ℃.Liquid coolant is cooled to for example 17 ℃ temperature in the air inlet cooling coil.The cooling agent that is cooled is sent to the evaporimeter 4 of cooling unit, and further cooling is so that liquid coolant finally is cooled to for example about 15 ℃ temperature therein, and described temperature is necessary for the pipe network operation of interior space aircondition.When outdoor temperature was lower than 19 ℃, the liquid coolant in the cooling air inlet cooling coil became possibility.
For a person skilled in the art, clearly the present invention is not only limited to above-described exemplary embodiments, but can change in the creative spirit and scope of appended claims.Interior space aircondition liquid coolant coolant circulating medium can be any type of liquid that meets as requested in this application of being applied in of territorial restrictions.And the compressor of mentioning in top claim and the specification and the quantity of heat exchanger are schematically, and can change as required.

Claims (4)

1. cooling unit, it can be installed in the air-conditioning system of building, be used for cooling room air wherein, by the air-supply and liquid coolant circulation aircondition (7) the cooling interior space, wherein except air inlet cooling function, cooling unit also comprises the circulate coolant cooler that connects with identical major loop, described circulate coolant cooler is connected with the circulate coolant aircondition (7) of the cooling interior space, it is characterized in that, cooling unit comprises two compressors (1) and two heat exchangers (4) of the circulate coolant aircondition (7) that is used for cooling off the interior space, and coolant circulating pipeline has another pipeline that is attached thereto, described another pipeline makes circulate coolant through air inlet cooling coil (3) under the help of pump (9), thereby realizes the cooling of air-supply.
2. cooling unit according to claim 1 is characterized in that, cooling unit has added an integration function that is used to heat air-supply.
3. cooling unit according to claim 1 is characterized in that, utilizes the middle liquid coolant that circulates of circulate coolant aircondition (7) of the sub-cooled interior space of outdoor air.
4. cooling unit according to claim 3, it is characterized in that, the liquid coolant that returns from the circulate coolant aircondition (7) of the described interior space of the interior space flow to the air inlet cooling coil (3) of cooling unit by valve (11), be cooled at this liquid coolant, cooling agent is sent to further cooling of described heat exchanger (4) thereupon.
CN2007101006293A 2006-03-03 2007-03-02 Cooling unit Expired - Fee Related CN101029757B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20060213A FI20060213L (en) 2006-03-03 2006-03-03 Cooling unit
FI20060213 2006-03-03

Publications (2)

Publication Number Publication Date
CN101029757A CN101029757A (en) 2007-09-05
CN101029757B true CN101029757B (en) 2011-06-08

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CN2007101006293A Expired - Fee Related CN101029757B (en) 2006-03-03 2007-03-02 Cooling unit

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EP (1) EP1830136B1 (en)
KR (1) KR101335983B1 (en)
CN (1) CN101029757B (en)
AT (1) ATE513170T1 (en)
DK (1) DK1830136T3 (en)
FI (1) FI20060213L (en)
NO (1) NO339882B1 (en)
RU (1) RU2435110C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20085412L (en) * 2008-05-06 2009-11-07 Flaekt Woods Ab Procedure for using outdoor air to cool room devices
FI124862B (en) * 2008-05-06 2015-02-27 Fläkt Woods AB Procedure for cooling supply air
IL193004A0 (en) * 2008-07-23 2009-08-03 Joul Srhan Deviding unit of the air-conditioner
US8640469B2 (en) * 2011-08-08 2014-02-04 The Boeing Company Aircraft supplemental liquid cooler and method
KR102403512B1 (en) 2015-04-30 2022-05-31 삼성전자주식회사 Outdoor unit of air conditioner, control device applying the same
UA104941U (en) * 2015-09-10 2016-02-25 Іван Іванович Котурбач REFRIGERANT COOLING SYSTEM
SI3492824T1 (en) * 2017-11-29 2021-03-31 Tom Ascough Method for conditioning air
CN110081576A (en) * 2018-01-25 2019-08-02 北京方鸿智能科技有限公司 Circulation device for air and the blower air circulatory system for the station with blower

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4446703A (en) * 1982-05-25 1984-05-08 Gilbertson Thomas A Air conditioning system and method
US4483152A (en) * 1983-07-18 1984-11-20 Butler Manufacturing Company Multiple chiller control method

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DE2140018A1 (en) * 1971-08-10 1973-02-15 Kaelte Waerme Klimatechnik Gmb HEAT PUMP HEATING OR COOLING DEVICE
DE2364020A1 (en) * 1973-12-21 1975-07-03 Kulmbacher Klimageraete AIR CONDITIONING UNIT
JP3100074B2 (en) * 1991-06-26 2000-10-16 ダイキン工業株式会社 Cooling system
JPH0828977A (en) * 1994-07-15 1996-02-02 Daikin Ind Ltd Cooling device of double freezer system
JP2000093733A (en) * 1998-09-22 2000-04-04 Ebara Corp Dehumidifying and air-conditioning apparatus
KR100565257B1 (en) * 2004-10-05 2006-03-30 엘지전자 주식회사 Secondary refrigerant cycle using compressor and air conditioner having the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446703A (en) * 1982-05-25 1984-05-08 Gilbertson Thomas A Air conditioning system and method
US4483152A (en) * 1983-07-18 1984-11-20 Butler Manufacturing Company Multiple chiller control method

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Publication number Publication date
NO20071154L (en) 2007-09-04
KR20070090781A (en) 2007-09-06
RU2435110C2 (en) 2011-11-27
ATE513170T1 (en) 2011-07-15
NO339882B1 (en) 2017-02-13
RU2007108018A (en) 2008-09-10
EP1830136B1 (en) 2011-06-15
EP1830136A1 (en) 2007-09-05
CN101029757A (en) 2007-09-05
DK1830136T3 (en) 2011-09-26
FI20060213L (en) 2007-09-04
FI20060213A0 (en) 2006-03-03
KR101335983B1 (en) 2013-12-04

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Granted publication date: 20110608

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